*{
	margin: 0px;
	padding: 0px;
}
#box{
	width: 300px;
	height: 320px;
	background-color: lightblue;
	margin: 80px auto;
	border-radius: 10px;
	padding: 20px;
	/*css3的新属性 不让盒子撑大*/
	box-sizing: border-box;
	position: relative;
}
h1{
	color: darkslategray;
	font-size: 18px;
}
#cloes{
	position: absolute;
	top: 20px;
	right: 20px;
	color: darkslategray;
	cursor: pointer;
	font-size: 20px;
}
hr{
	margin: 10px 0px 10px 0px;
	border: 1px solid #808080;
}
#ipt{
	width: 95%;
	height: 35px;
	outline: none;
	border: none;
	text-indent: 10px;
	border-radius: 5px;
	margin-bottom: 10px;
}
input{
	width: 50px;
	height: 30px;
	margin: 12px 6px 0px 5px;
	background-color: aliceblue;
	border: none;
	border-radius: 5px;
	cursor: pointer;
}
